title: Effect of low-voltage electrical stimulation after dressing on color stability and water holding capacity of bovine longissimus muscle.
abstract: The effect of low voltage electrical stimulation after dressing (ES) on color stability and water holding capacity (WHC) of beef was investigated. Nine Swedish red cattle were slaughtered and the left side was electrically stimulated (80 V, 35 s) approximately 30 min after stunning, whereas the other side was not treated and used as control. Color and its stability, WHC, and protein solubility were evaluated on longissimus lumborum muscles from the two sides. ES produced a brighter red color at 24h mainly by increasing the oxygenation capacity of myoglobin (P<0.01), which was attenuated by postmortem aging. ES did not affect WHC, protein solubility and color stability (P>0.05). Therefore, this technology could accelerate meat tenderization without any negative effect on commercial attributes, such as color or drip of bovine longissimus muscle.
authors.affiliation: Department of Food Science, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden. chbli2002@hotmail.com
authors.forename: Chunbao
authors.initials: C
authors.lastname: Li
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Xin
authors.initials: X
authors.lastname: Li
authors.forename: Marchen
authors.initials: M
authors.lastname: Hviid
authors.forename: Kerstin
authors.initials: K
authors.lastname: Lundström
mesh_terms: D000367:Age Factors; D000818:Animals; D002417:Cattle; D055664:Electrochemical Techniques; D005511:Food Handling / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008297:Male; D008460:Meat / Q000032:analysis*; D009124:Muscle Proteins / Q000737:chemistry; D018482:Muscle, Skeletal / Q000737:chemistry*; D009211:Myoglobin / Q000737:chemistry; D010084:Oxidation-Reduction; D010858:Pigmentation; D012519:Sarcoplasmic Reticulum / Q000737:chemistry; D012995:Solubility; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000032:analysis*
chemical_list: D009124:Muscle Proteins; D009211:Myoglobin; D014867:Water